Fix a build failure caused by a texinfo bug:

qemu-doc.texi:41: @menu reference to nonexistent node `QEMU Guest Agent'

Patch copied from upstream source repository:

https://git.qemu.org/?p=qemu.git;a=commitdiff;h=80bc935eaaf93e5b9a4efe97abd7c51d645f2612

From 80bc935eaaf93e5b9a4efe97abd7c51d645f2612 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@redhat.com>
Date: Mon, 16 Dec 2019 14:29:41 +0100
Subject: [PATCH] qemu-doc: Remove the unused "Guest Agent" node
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The node has been removed from the texi file some months ago, so we
should remove it from the menu section, too.

Fixes: 27a296fce982 ("qemu-ga: Convert invocation documentation to rST")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191216132941.25729-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 qemu-doc.texi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/qemu-doc.texi b/qemu-doc.texi
index eea91a2d1e..39f950471f 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -38,7 +38,6 @@
 * Introduction::
 * QEMU PC System emulator::
 * QEMU System emulator for non PC targets::
-* QEMU Guest Agent::
 * QEMU User space emulator::
 * System requirements::
 * Security::
-- 
2.24.1

